Malicious Code Injection in normal_mosquito_z3n Package
Summary
MAL-2025-106372: Malicious code in normal_mosquito_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The normal_mosquito_z3n package is part of the npm ecosystem, often used for various JavaScript applications. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with packages that can inflate developer reputation scores. This package, like others in the campaign, is designed to manipulate the npm registry through automated scripts.
Vulnerability Detail
The vulnerability in the normal_mosquito_z3n package originates from its malicious intent to modify the package.json file by removing private flags and changing version numbers. It generates random package names, primarily themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This behavior can lead to security risks, including the potential for developers to unknowingly use compromised packages, which may contain harmful code.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall normal_mosquito_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can remove the normal_mosquito_z3n package from your project by executing the following command: npm uninstall normal_mosquito_z3n. This will prevent any malicious code from executing in your application.
Conclusion
The normal_mosquito_z3n package poses a significant security risk due to its malicious code that modifies package metadata and repopulates the npm registry with compromised packages. It is essential to take immediate action to remove or update this package to safeguard your application.
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FAQ
The normal_mosquito_z3n package is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores through automated publishing.
This vulnerability can lead to the introduction of malicious code into your application, potentially compromising its security and functionality.
If you have installed the normal_mosquito_z3n package, it is crucial to uninstall it immediately and monitor your application for any unusual behavior.
Yes, you can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time about open-source vulnerabilities in your software.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
